Wheel-lock.



0. H. W. TALBOTT & W. F. PRETTYMAN.

WHEEL LOCK.

APPLICATION FILED AUGUZB, 1916.

Patented Mar. 20, 1917,

SP1-uci i You @vih/mam To @ZZ whom t may concer Be it knownthat we, OTHo H. W. TA1,4 eo'r'r and Winnaar F. Pan'rrrirax, citizens of the Uni/ted States, and residing at Rockville, Montgomery county, State of Maryland, have invented certain new and useful Improvements in VVheel-Locks, of which the following is a specification. l

The invention relates to devices for preventing stealing or unauthorized movement oit' a vehicle. More particularly it consists of means'to be attached to a vehicle wheel whereby the rotation of the same may be prevented. It also includes means for preventing the. removal of the wheel so that the locking` means cannot be disengaged after the removal of the wheel.-

' ln the drawings, in which like reference characters indicate the same part in the dit'- ferent views,

Figure 1 is a longitudinal section through a wheel with the attached balte drum and showing the locking` device, the axle and housing` therefor being shown in elevation.

Fig. 2 is aI cross sectional elevationtaken on the linezZ-Q of Fig. 1 and looking` in the direction indicated by the arrows, the axle and housing not being shown.

Fig. 3 is a detail similar to Fig. 2 but showing the locking pawl thrown out of engagement with the ratchet wheel.

Fig. e is a perspective view of the locking pawl showing the flange for preventing the removal of the vehicle wheel. l

4 In the embodiment shown the locking device is illustrated as applied to the rea-r wheel of a vehicle. The rear wheel 10 carries the usual brake drum 11 which may be fastened to the wheel in any suitable manner and is illustrated as attached thereto by means ofthe bolts 12, extending through the' wheel. A plate 13 is rigidly connected with the axle housing. 1-1 in any desired manner and together with the brake drum 11 forms a casing. Mounted within the casing and connected to the wheel for rotation therewith in any suitable manner is a ratchet wheel 15. ln the embodiment illustrated the ratchet lwheel is shown as mounted on the axle housing and connected to the ve.- hicle wheel hy the bolts 12. which also hold the brake drum. The non-rotative element 13 of the casing is ormedwith a boss 16 which carries a stud 17 on which is pivotally Y, .Onno H. W. transcrit am) WrLLraivrr. rianrrfrivrniv, oF-noeirvrmn, MARYLAND.

Application filed August 28, 1916. Serial No; 117,296.

rfrom the iock'to throw the pawl out of engagement with .the ratchet wheel. The plate 13 is formed with a key opening` 21 through vwhich a. key may be inserted to operatethe lock. The pawl is provided at the side adjacent the vehicle wheel with a downwardly extending flange '22 which, when the pawl is in engagement with the ratchet wheel, is adapted to lie beside the ratchet wheel and prevent outward movement of the same. Thus if the hub cap andnieans for retaining the vehicle wheel on the axle are removed, the wheelitself cannot be taken oli as the flange 22 will prevent outward movement of the ratchet wheel which in turn 'is rigidly connected with the vehicle wheel.

It will he noted that the pawl 18 I"normally is in engagement with the ratchet wheel, thus locking the wheel against forward rotation. Consequently with the pawl in its normal position the vehicle cannot be moved forward. The pawl is thrown out of engagement with the ratchet wheel by operating the lock to project the 'bolt Q0 and move the pawl outward from the periphery of the ratchet wheel, also carrying theilange Q2 outside of the periphery of the ratchet wheel. With the. pawl in this disengaged position the ratchet and vehicle wheel may be rotated either forward or backward and Vif necessary the vehicle wheel may be removed frein the axle, as the flange is not in the path of outward movement of the i atchet wheel.

It will thus be seen thata very simple mechanism is provided for preventing the forward rotation of a wheel, and one which is readily attached lo a vehicle without any substantial modification of the structure of the same. While the device is shown in connection withl a rear wheel and brake drum it is obvious that it maybe attached or arranged in connection with other wheels not having brake drums. :In this latter case it is obvious that the casing would be ni'odified to ineetthe conditions ot the vehicle wheel structure, the onlyv requirement being that the pawl and lool; he fastened t0 a non-rotative part of the vehicle.

'2. In combination with the non-rotativel rear axle housing of a motor vehicle and the `rear Wheel having a lbrake drum thereon, nieansljiior locking the wheel against forward rotation' comprising a member Within the drum connected to the axle housing, and a second member Within the drinn connected to rotate with the Wheel, one of said members ,being mounted for movement Itransverse tothe axis of the axle into or out of engagement vvith the other member.

3. in combination `with the non-rotative rear axle housing of a motor Vvehicle and the rear Wheel having a brake drum there l on, means for locking the Wheel against forward rotation comprising acmember Within the drinn connected to the axle housing, a second member within the drum connected to `rotate with the Wheel, one of said meinbers being mounted -for movement tra-nsverse to the axis oii the axle into or ont of engagement with the other member, and key actuated means for controllin the en gagement of said members.

4. Incombination With vthe non-rotative rear axle housing of a motor vehicle and the rea-r Wheel having a brake drum thereon, means for locking the wheel against forvvardrotation comprising a ratchet wheel member Within the drum and a pawl member, one of said members connected to the axle housing and the other to the Wheel,

and means for moving the pawl into or out of engagement with the ratchet wheel.

5. In combination With the non-rotative rear axle housing of a'motor vehicle and the rear Wheel having a brake drum thereon,

means for locking the Wheelagainst forward rotation comprising a member Withiii the drum. connected tothe axle housing,l

a second member within 4the drum and adapted to coact with the first member, and means for locking the wheel against removal 'when the members are m engagement.

6. In combination With the non-rotative rear axle housing of a motor vehicle and the rear Wheel having a brake `drum thereon, means for .locking the Wheel against foin Ward rotation comprising a member Within the drum connectedto the axle h'ousin aA pawl having a side liange cooperating With the ratchet Wheel adapted to prevent removal of the vehicle wheel when the paivl is in engagement with the ratchet Wheel, and key actuated means for raising the pa-vvl and its flange out of engagement with the ratchet wheel.

8. A vehicle having a Wheel, a casing, a ratchetfivheel member and cooperating pawl member within the casing, one of said .ineinbers connected to the Wheel and the other to a nonrotative part'iof the "vehicle, and means for locking the vehicle wheel against removal and comprising a -iiange on one member cooperating with the other member when they are in engagement.

.9. A vehicle having a Wheel, a casing, a

wheel Within the casing and connected to rotate Withthe vehicle Wheel, and key actuated means Within the casing and coperating with the Wheel therein for locking the vehicle Wheel against forward movement and also against removal from the vehicle.

10. A vehicle having a Wheel, a casing inclnding a part adapted to be attached to a non-rotative member of the vehicle, a ratchet wheel iiiclosed" in said casing and connected to rotate with the vehicle Wheel, and key actuated means carried by thel non-rotative part ot the casing and coperating with the ratchet wheel to prevent forward movement and removal ot' the vehicle Wheel.

l1. A vehicle having a' Wheel, a casing including a part adapted to be attached to a non-rotative member of the vehicle, a ratchet Wheel inclosed in said casing and connected to rotatel with the vehicle Wheel, a pavvl normally engaging said ratchet Wheel and having a side flange cooperating therewith adapted to prevent removal of the vehicle Wheel -When the pavvl is in engagement with the ratchet Wheel and key operated means Vfor raising the pavvl and its flange ont of vengagement with the ratchet Wheel.

In testimony whereof ive affix our signa- OTHO H. WT. llAliBOlT. WILLIAM F. PRETTYMAN.

tures. 

